var levels = [
    [
        [50, 0],
        [50, 100],
        [50, 40],
    ],
    [
        [20, 0, 5, ],
        [30, 100, 7, ],
        [50, 40, 8],
    ],
    [
        [0, 0, 2],
        [0, 0, 3],
        [0, 0, 4],
        [0, 100, ],
        [1, 40, ],
    ],

]